TW200627049A - Method and system for automatically adjusting the flash intensity of camera - Google Patents

Method and system for automatically adjusting the flash intensity of camera

Info

Publication number
TW200627049A
TW200627049A TW094102353A TW94102353A TW200627049A TW 200627049 A TW200627049 A TW 200627049A TW 094102353 A TW094102353 A TW 094102353A TW 94102353 A TW94102353 A TW 94102353A TW 200627049 A TW200627049 A TW 200627049A
Authority
TW
Taiwan
Prior art keywords
flash
focusing
motor rotation
camera
control device
Prior art date
Application number
TW094102353A
Other languages
Chinese (zh)
Other versions
TWI274952B (en
Inventor
Chang-Feng Wang
Wei-Jia Du
Original Assignee
Asia Optical Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asia Optical Co Inc filed Critical Asia Optical Co Inc
Priority to TW094102353A priority Critical patent/TWI274952B/en
Priority to US11/158,057 priority patent/US7499636B2/en
Publication of TW200627049A publication Critical patent/TW200627049A/en
Application granted granted Critical
Publication of TWI274952B publication Critical patent/TWI274952B/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • G02B7/102—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens controlled by a microcomputer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2101/00—Still video cameras

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Exposure Control For Cameras (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

The present invention provides a method and system for automatically adjusting the flash intensity of camera. The invented system includes: a lens device, an image detection device, a focusing system, a focusing detection device, a control device, and a flash device. The invented method comprises: using a focusing detection device to detect the motor rotation stepping number of a focusing system during a focusing process; transmitting the motor rotation stepping number to a control device; and using the control device to compare the motor rotation stepping number with pre-determined motor rotation stepping numbers and photographed object distance conversion table stored in the control device in order to obtain the distance between a photographed object and the camera for calculating a flash index of the flash light, so as to control the flash light to emit an optimum lighting thereby enabling a picture to obtain an accurate exposure. Thus, the present invention is able to achieve the objectives of accurate control and adjustment of flash intensity and accurate exposure for the flash light with low cost and low power consumption.
TW094102353A 2005-01-26 2005-01-26 Method and system for automatically adjusting the flash intensity of camera TWI274952B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW094102353A TWI274952B (en) 2005-01-26 2005-01-26 Method and system for automatically adjusting the flash intensity of camera
US11/158,057 US7499636B2 (en) 2005-01-26 2005-06-22 Method for automatically coordinating flash intensity and camera system as the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094102353A TWI274952B (en) 2005-01-26 2005-01-26 Method and system for automatically adjusting the flash intensity of camera

Publications (2)

Publication Number Publication Date
TW200627049A true TW200627049A (en) 2006-08-01
TWI274952B TWI274952B (en) 2007-03-01

Family

ID=36696860

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094102353A TWI274952B (en) 2005-01-26 2005-01-26 Method and system for automatically adjusting the flash intensity of camera

Country Status (2)

Country Link
US (1) US7499636B2 (en)
TW (1) TWI274952B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8223261B2 (en) 2008-12-11 2012-07-17 Hon Hai Precision Industry Co., Ltd. Image capture device and control method thereof
TWI382752B (en) * 2008-12-19 2013-01-11 Hon Hai Prec Ind Co Ltd Image capturing device and light compensating method thereof

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060114890A (en) * 2005-05-03 2006-11-08 주식회사 팬택앤큐리텔 Wireless telecommunication terminal and method for controlling flash lightness automatically
TWI320132B (en) * 2006-05-30 2010-02-01 Method for triggering strobe of image-capturing device
US8497928B2 (en) 2007-07-31 2013-07-30 Palm, Inc. Techniques to automatically focus a digital camera
WO2009114009A1 (en) * 2008-03-11 2009-09-17 Hewlett-Packard Development Company, L.P. Systems and methods of processing touchpad input
CN101655649B (en) * 2008-08-21 2011-03-23 佛山普立华科技有限公司 Image acquisition device and flash control method thereof
TWI385475B (en) * 2008-09-05 2013-02-11 Hon Hai Prec Ind Co Ltd Image pick-up device and flash control method thereof
CN101685194A (en) * 2008-09-26 2010-03-31 鸿富锦精密工业（深圳）有限公司 Automatic focusing device and automatic focusing method
TWI398716B (en) * 2009-09-09 2013-06-11 Altek Corp Use the flash to assist in detecting focal lengths
JP2011158696A (en) * 2010-02-01 2011-08-18 Panasonic Corp Imaging device and mobile apparatus
TWI411477B (en) * 2010-05-31 2013-10-11 Opening and closing devices and biomass treatment equipment
US8771085B1 (en) 2010-08-06 2014-07-08 Arthur C. Clyde Modular law enforcement baton
US8391702B2 (en) 2010-12-17 2013-03-05 Research In Motion Limited Reduced pre-flash for LED flash based camera devices
TWI461813B (en) * 2012-02-24 2014-11-21 Htc Corp Image capture method and image capture system thereof
TWI452404B (en) * 2013-01-04 2014-09-11 Lustrous Electro Optic Co Ltd Image-capturing system having a function of automatically adjusting a light-projecting angle
JP6236804B2 (en) * 2013-03-05 2017-11-29 セイコーエプソン株式会社 Imaging apparatus and brightness adjustment method
JP6245493B2 (en) * 2013-03-27 2017-12-13 パナソニックＩｐマネジメント株式会社 Imaging device
KR102158699B1 (en) * 2014-09-25 2020-09-22 엘지전자 주식회사 Method for controlling mobile terminal and mobile terminal
GB2549152B (en) 2016-04-08 2020-09-16 Rotolight Ltd Lighting system and control thereof
EP3229558A1 (en) * 2016-04-08 2017-10-11 Rotolight Limited Lighting system and control thereof
CN107770455A (en) * 2017-09-30 2018-03-06 维沃移动通信有限公司 The method of adjustment and mobile terminal of a kind of flash lamp
CN108174115B (en) * 2017-12-26 2020-05-26 浙江大华技术股份有限公司 Light supplementing method and device for flying saucer camera
KR102449568B1 (en) * 2018-01-09 2022-10-04 한화테크윈 주식회사 Lighting control method, apparatus and computer program
JP7289929B2 (en) 2019-11-29 2023-06-12 富士フイルム株式会社 Imaging support device, imaging system, imaging support method, and program

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329031A (en) 1981-02-02 1982-05-11 Polaroid Corporation Photographic system for varying flash fire aperture as a function of ambient scene light
KR970006908B1 (en) 1992-10-23 1997-04-30 삼성항공산업 주식회사 Device and method to give an alarm of lack of the intensity of radiation of camera flash
JPH08262552A (en) * 1995-03-28 1996-10-11 Nikon Corp Camera capable of displaying distance information
US5966550A (en) * 1997-02-24 1999-10-12 Asahi Kogaku Kogyo Kabushiki Kaisha Automatic focusing apparatus in a camera
US6272292B1 (en) * 1998-12-22 2001-08-07 Nikon Corporation Electronic flash control apparatus
CN2426157Y (en) 1999-07-19 2001-04-04 中国科学院光电技术研究所 Program-controlled high-precision zoom device
AU2002950635A0 (en) 2002-08-07 2002-09-12 Graham Guile Multiple directional wheel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8223261B2 (en) 2008-12-11 2012-07-17 Hon Hai Precision Industry Co., Ltd. Image capture device and control method thereof
TWI382752B (en) * 2008-12-19 2013-01-11 Hon Hai Prec Ind Co Ltd Image capturing device and light compensating method thereof

Also Published As

Publication number Publication date
US20060165399A1 (en) 2006-07-27
US7499636B2 (en) 2009-03-03
TWI274952B (en) 2007-03-01

Similar Documents

Publication Publication Date Title
TW200627049A (en) Method and system for automatically adjusting the flash intensity of camera
JP2008191335A5 (en)
HK1122363A1 (en) Camera device and autofocus control method
JP2006085168A (en) Flash module, camera, and method for illuminating object during flash photography
TW200740211A (en) Imaging apparatus and exposure control method
TW200714397A (en) Laser repair apparatus
EP2249203B1 (en) Ring light apparatus with variable projection angle
EP1858254A3 (en) Image capture apparatus with improved flash control
TW200717172A (en) Photo module capable of adjusting distance between camera module and sensor unit
TW200612180A (en) Projector with adjustable image offset
CN201523154U (en) Integrated electric zooming semi-conductor laser device
ATE412172T1 (en) LIGHT INTENSITY ADJUSTMENT SYSTEM
CN102736364A (en) Imaging apparatus and camera system
CN209913938U (en) Camera detection locking system based on optical imaging
EP1720342A3 (en) Wireless communication terminal having function of automatically controlling intensity of radiation of light emitting unit and method thereof
CN103217857B (en) Hunting camera as well as automatic lighting regulating system and regulating method of the hunting camera
CN103017897A (en) Luminosity information measurement device and method
JP2000266987A (en) Camera
ATE349023T1 (en) LENS IMAGING SYSTEM
CN203191671U (en) Hunting camera and illumination automatic regulating system thereof
KR20110027400A (en) Ir illuminator using multy-array infrared ray illuminant
US7321725B2 (en) Light-amount control device for photographing
JP6132661B2 (en) Imaging device, illumination device, and control method
JP2010134091A (en) Stroboscopic device, imaging apparatus, and camera system
WO2008117639A1 (en) Auxiliary light emitting device and photographing device

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees